Results 41 to 50 of about 179,155 (337)

Rethinking Current Controller Design for PLL-Synchronized VSCs in Weak Grids

open access: yesIEEE transactions on power electronics, 2021
This article revisits the design of the current controller for grid-connected voltage-source converters (VSCs), considering the dynamic impacts of the phase-locked loop (PLL), weak grids, and of voltage feedforward (VFF) control.
Hong Gong, Xiongfei Wang, L. Harnefors
semanticscholar   +1 more source

Técnicas de controle e métodos de sincronização para sistemas de energia renovável ligados à rede elétrica - Uma revisão

open access: yesSemina: Ciências Exatas e Tecnológicas, 2017
Os Sistemas de Energia Renovável (SER) tornaram-se uma alternativa atrativa frente às fontes de energia convencional, devido à necessidade de diversificar a matriz energética e assim garantir o abastecimento da demanda futura de eletricidade de uma forma
Sebastián Manrique Machado   +1 more
doaj   +1 more source

A New Hybrid Synchronization PLL Scheme for Interconnecting Renewable Energy Sources to an Abnormal Electric Grid

open access: yesMathematics, 2022
Today, and especially with the growing interest in distributed renewable energy sources (DRESs), modern electric power systems are becoming more and more complex. In order to increase DRES penetration, grid side converter (GSC) control techniques require
Mansoor Alturki   +3 more
doaj   +1 more source

The influence of detector's parameters on the efficiency of radio signals with complex phase modulation receiving

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2018
The paper presents the results of simulation of a detector, implemented on the basis of a phase locked loop device (PLL), the mathematical modeling of signals with 8-QAM modulation, and investigates the influence of PLL parameters on the receiving ...
I. P. Maksymiv   +3 more
doaj   +1 more source

Overview of SOGI-Based Single-Phase Phase-Locked Loops for Grid Synchronization Under Complex Grid Conditions

open access: yesIEEE Access, 2021
Synchronization is the key part to ensure the high performance of grid-connected systems. Phase-locked loop (PLL) is one of the most popular synchronizations due to its simple implementation and robustness under certain grid variations.
Jinming Xu   +4 more
doaj   +1 more source

Overcharging and reentrant condensation of thermoresponsive ionic microgels [PDF]

open access: yes, 2018
We investigated the complexation of thermoresponsive anionic poly(N-isopropylacrylamide) (PNiPAM) microgels and cationic $\epsilon$-polylysine ($\epsilon$-PLL) chains. By combining electrophoresis, light scattering, transmission electron microscopy (TEM)
Bazzoni, Chiara   +5 more
core   +4 more sources

Improvement of optimization of the drive design for laser scanners based on the analysis of characteristics of scanning devices in construction industry [PDF]

open access: yesОмский научный вестник
A laser scanning is a promising method of control in construction, providing high accuracy and speed of measurements. Terrestrial laser scanning is one of the key tools within the framework of Building Information Modeling technology, enabling the ...
A. Yu. Turybrin   +2 more
doaj   +1 more source

Design of a High-Performance High-Pass Generalized Integrator Based Single-Phase PLL

open access: yes, 2016
Grid-interactive power converters are normally synchronized to the grid using phase-locked loops (PLLs). The performance of the PLLs is affected by the non-ideal conditions in the sensed grid voltage such as harmonics, frequency deviations and dc offsets
John, Vinod, Kulkarni, Abhijit
core   +1 more source

A Novel PMSM Hybrid Sensorless Control Strategy for EV Applications Based on PLL and HFI [PDF]

open access: yes, 2016
In this paper, a novel hybrid sensorless control strategy for Permanent Magnet Synchronous Machine (PMSM) drives applied to Electric Vehicles (EV) is presented.
Arias Pujol, Antoni   +6 more
core   +1 more source

Design of a fast-acquisition phase-locked loop for frequency control systems

open access: yesDianzi Jishu Yingyong
Phase-locked loop (PLL) is a negative feedback control system that can achieve phase synchronization of two signals. Its filtering effect can make its passband narrow, and its output frequency automatically track the input frequency.
Chang Jian   +4 more
doaj   +1 more source

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